Dealing with money is rough, and after watching the world go through wars, a recession and a housing crisis, you're rightfully scared and downright confused. Millennials who are single and starting their careers generally aren't risk-takers when it comes to money, which is a good thing, but you're still making plenty of financial mistakes that could end up costing you later on in life. Here are the top mistakes Generation Y keeps making and how you can address them ASAP.